3x+12+2x=-18

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Solution for 3x+12+2x=-18 equation:


Simplifying
3x + 12 + 2x = -18

Reorder the terms:
12 + 3x + 2x = -18

Combine like terms: 3x + 2x = 5x
12 + 5x = -18

Solving
12 + 5x = -18

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-12' to each side of the equation.
12 + -12 + 5x = -18 + -12

Combine like terms: 12 + -12 = 0
0 + 5x = -18 + -12
5x = -18 + -12

Combine like terms: -18 + -12 = -30
5x = -30

Divide each side by '5'.
x = -6

Simplifying
x = -6

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